How to make glowing (spaceship) engines?

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How to make glowing (spaceship) engines?

Postby LemmyDeluxe » Sun Oct 11, 2020 8:36 pm

LemmyDeluxe Sun Oct 11, 2020 8:36 pm
Hello, this is my first posting here.

I wanted to rework some old scenes with spaceships I created many years ago. I have problems with the engines. In Cinema4D I had used visible point lights, which had a linear decrease but no emission. I could live with the result, not very realistic, but fast rendering.

With Octane I can't find a solution to get a similar result. I played with gloom power, lights and materials with emissions. But somehow it does not fit. I think there is an easy way, but I have trouble finding it. Any ideas how to simply represent burning engines?

My old engines in C4D looked something like this:

engines_on.JPG


engines_c4d.JPG


ship_05_0001.jpg


That's the best I could get out with Octane by now, but there are no flames, just this bright area inside the engine:

engine_octane.JPG


I used a disc with transparent but emitting material. But I would like to have something like a fire dome which fades out from the center to the edges.

Thanks in advance.
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Re: How to make glowing (spaceship) engines?

Postby bepeg4d » Mon Oct 12, 2020 8:47 am

bepeg4d Mon Oct 12, 2020 8:47 am
Hi,
for a more realistic effect you should need to prepare a Volume, but have a look at this simple and fast solution with a Cone primitive, and Specular/Air material with IOR =1 and Scattering Medium:
3AA78E3B-5A2F-44CA-B5E9-035742D6B9E9.jpeg


ciao Beppe
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Re: How to make glowing (spaceship) engines?

Postby LemmyDeluxe » Mon Oct 12, 2020 12:26 pm

LemmyDeluxe Mon Oct 12, 2020 12:26 pm
Hi, thanks a lot. Exactly what I was looking for.
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